The following RemoteApp program is not in the list of authorized programs on Windows Essential Server

I’ve seen this error twice this week on two Windows Servers with the Essentials role installed. One was 2012 R2 Server and the other was 2016 Server. When you run the Dashboard app from a client computer, you get the error below

Windows cannot stat the RemoteApp program.

The following RemoteApp program is not in the list of authorized programs:

Dashboard

For assistance contact your system administrator.

For some reason yet to be determined, we found that a registry key was set incorrectly. Thanks to Susan Bradley for your help here.